128 



S. I. Smith — Crustaceans of the Atlantic Coast. 



occur locally or accidentally north, and the seven southern species (-'3) 

 which occur similarly south of Cape Cod, there are left only eleven 

 species (4, 5) which can be properly regarded as common to two re- 

 gions of the New England coast. This fiiirly represents, I think, 

 the marked diiFerence between the tAvo faunae; a difference due 

 principally to the difference in the temperature of the water, but 

 partially undoubtedly, to the different sti'ucture of the coast and to 

 the different nature of the shore and bottom in the two regions. 



That there is no similar change in the fauna of the coast and shal- 

 low waters from Massachusetts Bay to Labrador is well shown by a 

 comparison of the fauna of Massachusetts and Casco Bays with the 

 fauna of the Gulf of St, Lawrence at similar depths. Omitting the 

 southern species of lists (1, 2) and also the deep-water species (8) 

 which are ordinarily not found at depths less than fifty fathoms, the 

 following species are left recorded from Massachusetts and Casco 

 Bays ; those not yet recorded from the Gulf of St. Lawrence being 

 prefixed by an asterisk : 



Cancer irroratus. 



*C. borealis. 



Hyas araneus. 



H. coarctatus. 



*Eupagurus beruhardus. 



E. pubescens. 



E. Kroyeri. 



Homarus Americanus. 



*Axius serratus. 



Crangon vulgaris. 



C. boreas. 



Sabinea septemcarinata. 



*Caridion Gordon!. 



Hippolyte Fabricii. 



H. Gaimardii. 



H. spinus. 



*H. securifrons. 



H. Phippsii. 



H. pusiola. 



H. polaris. 



Hippolyte Groenlandica. 

 *Pandalus borealis. 

 P.- annulicornis. 

 Thysanopoda Norvegica. 

 T. inermls. 

 *Erythrops Goesii. 

 Meterythrops robusta. 

 *Mysis mixta. 

 *M. stenolepis. 

 Diastylis politus. 

 D. sculptus. 



D. quadi'ispinosus. 

 *D. abbreviatiis. 

 *Leptostylis longimauus. 

 *Eudorella hispida. 



E. pusilla. 

 *E. deformis. 

 *Lamprops quadriplieata. 

 *Campylaspis rubicnuda. 



(«■ 



This list contains all the species recorded from less than fifty fathoms 

 in the Bay of Fundy (unless 3fi/sis oculata or Leitcon nasicoides 

 may prove to be exceptions), and is, as far as known, a complete list 

 of the species which should be regarded as the regular inhabitants of 

 the coast region of northern N"ew England. Only six species addi- 

 tional to this list are recorded from the Gulf of St. Lawrence ; they 

 are the following : 



